mrdoob/sequencer.js — explained in plain English
Analysis updated 2026-07-27 · repo last pushed 2011-08-03
Build a browser-based drum machine that triggers sounds on a step grid.
Create a generative music tool that plays notes at timed intervals.
Add tightly synced audio to an interactive web game or art installation.
Develop a web app where visuals and beats stay locked together on a timeline.
| mrdoob/sequencer.js | cdredfox/workbuddy-skin-studio | kiddo-pwn/ffffirefox | |
|---|---|---|---|
| Stars | 64 | 64 | 64 |
| Language | JavaScript | JavaScript | JavaScript |
| Last pushed | 2011-08-03 | — | — |
| Maintenance | Dormant | — | — |
| Setup difficulty | moderate | moderate | hard |
| Complexity | 2/5 | 3/5 | 5/5 |
| Audience | developer | general | researcher |
Figures from each repo's GitHub metadata at analysis time.
The README has no documentation, so you must read the source code to understand the API and figure out how to use it.
Sequencer.js is a JavaScript project meant to act as a sequencer, which in music terms is a tool that plays back notes or sounds in a specific, timed order. The core idea is to give developers a way to build rhythmic, step-based audio directly in the browser using code rather than traditional music software. Based on the name and context, the project likely works by letting you schedule audio events on a timeline, triggering sounds at precise intervals. This is a common need in web-based music apps, games, or interactive art where timing matters and everything runs in JavaScript. A typical sequencer divides time into steps or beats, then fires off whatever sound or action you've assigned to each step. The people who would use this are likely web developers building music-related projects, interactive installations, or browser games where audio needs to stay tightly synced. For example, if you're building a drum machine web app, a generative music tool, or a site where visuals and beats need to stay locked together, something like this handles the timing layer so you can focus on the creative side. The README doesn't go into detail beyond the project name, so there's no documentation available to confirm specific features, usage instructions, or design choices. If you're curious about how to actually implement it, you'd need to explore the code directly to understand the API and what tradeoffs the author made.
Sequencer.js is a JavaScript tool for building step-based audio sequences in the browser. It lets developers trigger sounds at timed intervals to create rhythmic music apps, games, or interactive art using code.
Mainly JavaScript. The stack also includes JavaScript, Web Audio API.
Dormant — no commits in 2+ years (last push 2011-08-03).
No license information is provided in the README, so the terms of use are unclear.
Setup difficulty is rated moderate, with roughly 30min to a first successful run.
Mainly developer.
This repo across BitVibe Labs
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